Download or read book Effect of refertilization on the development and foliar nutrient contents of young scots pine stands on drained mires of different nitrogen status written by Seppo Kaunisto and published by . This book was released on 1987 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seloste.
Download or read book Northern Forested Wetlands Ecology and Management written by Carl C. Trettin and published by Routledge. This book was released on 2018-12-19 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forested wetlands are a major component of northern landscapes, important both for their ecological functions and their socioeconomic values. Historically, these lands have been used for timber and fiber products, hunting, fishing, trapping, food gathering, and recreation. There are many questions about the use and management of these lands in the future, particularly with respect to forest products, hydrology and water quality, plant and wildlife ecology, landscape dynamics, and wetland restoration. Northern Forested Wetlands: Ecology and Management provides a synthesis of current research and literature. It examines the status, distribution, and use of these wetland resources. The book focuses on understanding the role of wetlands in the landscape and on how to manage these wetlands and sustain their important functions. This is a primary reference text for the study and management of northern forested wetlands, providing a forum for information discovered by researchers and managers from many nations.
Download or read book Canadian Journal of Forest Research Journal Canadien de la Recherche Foresti re written by and published by . This book was released on 2005 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Baltic Forestry written by and published by . This book was released on 2003 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Folia Forestalia written by and published by . This book was released on 1993 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Intensive Fertilization on the Foliar Nutrition and Growth of Young Lodgepole Pine Forests in the British Columbia Interior written by Robert Peter Brockley and published by . This book was released on 2010 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginning in 1992, the British Columbia Ministry of Forests established a small network of lodgepole pine and interior spruce nutrient optimization research installations on representative sites within three major biogeoclimatic (BEC) zones in the British Columbia Interior. The objectives of the long-term "maximum productivity" study are to (1) compare the effects of different regimes and frequencies of repeated fertilization on the foliar nutrition, growth, and development of young interior forests, and (2) determine the effects of large nutrient additions on above- and below-ground timber and non-timber resources. This report examines the effects of repeated fertilization on foliar nutrition and tree- and stand-level growth and development over 12 years at the five lodgepole pine study sites.--Document.
Download or read book Communicationes Instituti Forestalis Fenniae written by and published by . This book was released on 1988 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Silva Fennica written by and published by . This book was released on 1994 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optimum Nutrition and Nitrogen Saturation in Scots Pine Stands written by Carl Olof Tamm and published by . This book was released on 1999 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Fertilization on Growth and Nutrient Concentration in Young Loblolly Pine written by Robert Glenn Merrifield and published by . This book was released on 1967 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1991 with total page 1810 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Fertilization on the Growth and Foliar Nutrition of Immature Douglas fir in the Interior Cedar hemlock Zone of British Columbia written by Robert Peter Brockley and published by University of British Columbia Press. This book was released on 2006 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The effects of fertilization with nitrogen (N) alone, and in combination with sulphur (S), on the growth and foliar nutrition of six immature, managed Douglas-fir (Pseudotsuga menziesii var. glauca [Beissn.] Franco) stands in the Interior Cedar-Hemlock (ICH) biogeoclimatic zone of British Columbia are reported 6 years after treatment. Results indicate that interior Douglas-fir stands growing on circummesic sites within the ICH zone are generally responsive to fertilization. Disregarding results from one installation that was damaged by Armillaria root disease, average net volume response following fertilization with N alone was 13.5 m3/ha (range: 6.5-24 m3/ha) compared to the control treatment. Six-year volume gains from N+S additions averaged 16 m3/ha (range: 10-23 m3/ha). In relative terms, stand volume responses to fertilization with N and N+S averaged 24% (range: 8-41%) and 28% (range: 16-39%), respectively. Growth projections generated by the tipsy growth and yield program indicate that the accelerated stand development following a single fertilizer application will likely reduce biological rotations (i.e., culmination of mean annual increment) and technical rotations (e.g., minimum harvestable age) by 2-3 years. Relative growth responses compare favourably with results from Douglas-fir fertilization studies in other jurisdictions.??Pre- and post-fertilization foliar nutrient analyses indicate that several of the sites were marginally S deficient, and that S status deteriorated 1 year following N fertilization. Added S was readily taken up, thereby maintaining a favourable N:S balance in trees fertilized with N+S. Despite improvements in foliar S status, the incremental growth benefits of added S may be too small on most sites to justify the extra expense involved in blending and applying N+S fertilizers in large-scale aerial operations.??Results from this study, and others, indicate that pre-fertilization levels of foliar N and sulphate S (SO4) may have utility in selecting candidate stands and in making appropriate fertilizer prescriptions. For example, the largest growth responses following fertilization may be expected in stands with pre-fertilization foliar N levels less than 11.5 g/kg ( 13 g/kg when using dry combustion analytical methods). Also, low foliar N combined with small amounts of pre-fertilization foliar SO4 (
Download or read book Bibliography of Agriculture with Subject Index written by and published by . This book was released on 1989 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Influence of Fertilisation on Foliar Nutrients for Scots Pine Pine Sylvestris L 24 Years After Ferilisation with NPK and PK of a Drained and Planted Low Sedge Mire written by Kimberly Lambe and published by . This book was released on 1998 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Influence of Fertilisation on Foliar Nutrients for Scots Pine Pinus Sylvestris L 24 Years After Fertilisation with NPK and PK of a Drained and Planted Low Sedge Mire written by and published by . This book was released on 1998 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrogen Fertilization Effects on Growth and Value of Eastern White Pine Sawlog Stands on Till and Outwash Soils written by Robert K. Shepard and published by . This book was released on 1992 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diameter growth response functions were developed using data collected from nitrogen fertilization study plots in eastern white pine stands on till and outwash soils. These functions were combined with height measurements and used to evaluate stand volume and value growth. White pine diameter growth functions were developed for application rates of 0, 50, 100, and 200 lb of nitrogen/ac, but only those for the 0 and 100 lb/ac treatments were compared because it was evident that the 100 lb/ac treatment would provide a larger financial return than either 50 or 200 lb/ac. The mean increase in sawtimber volume due to fertilization with 100 lb of N/ac was 1,226 bd ft/ac for stands on the till soils and 775 bd ft/ac for stands on the outwash soils. Increases in studwood volume were 293 and 172 bd ft/ac, respectively. The average stand value increase due to fertilization, with a sawtimber price of $100/thousand bd ft and a studwood price of $50/thousand bd ft, was $135/ac on the till soils and $87/ac on the outwash soils.
